Centrifugal separator.



PATBNTBD 00T. 23; 1906'.

J. J. BERRIGAN. CENTRIFUGAL SEPARATOR.

2 SHEETS-SHEET 1.

PATENTED 00T. 23, 1906.

J.' J. BBR'RIGAN. CENTRIFUG'A'L sBPARAToR.

APPLICATION FILED IAB.. 1. 1904.

2 SHEETS-SHEET 2.

WITNESSES:

UNITED STArES Aiin-WENT OFFICE.-

JOHN JOSEPH BERRieAN, OE EAST ORANGE, NEW JERSEY, ASSioNOE TO FRANCIS J. ABEND, OF vNEW YORK, N'. Y., AND- JOHN BERNSTROM, OF

' STOCKHOLM, S\VEDEN.

CENTmF'uG-,A'L sii-:'PARATOR.

Ne s34,o43.

Specification Vof Letters Patent.

Patented Oct. 23, 1906.

have invented a new and useful Improve-l ment Centrifugal Separatore, of which the following is a specification.

In another lapplication for Letters Patent,

Serial No. 193117 Afiled by me February vl1, 1904, I have fully described and broadly claimed a new machine for Separating solids and liquids, wherein the liquid is drawn lof by decantation from the inner surface of the deposit formed by centrifugal force on the circumferential wall of a rotary vessel, while the Solids are conveyed from said de osit longitudinally of said vessel over a ry s ace therein and finally ejected at a distance om their place of entry.

AMy present invention consists in the'construction of ythel centrifugal machine described, 'wherein the aforesaid principle is carried into effect, as more particularly hereinafter pointed out in the claims.

In the accompanying drawings, Figure 1 is a vertical longitudinal `section of the machine.' Fig. 2- is a cross-section on .the linev 2 2 of Fig.r 1.l Fig. 3 is a crosssection on the line 3 3 of Fig. 1.

Similar numbers of reference indicate like parts'. e

.4 is the bed of the machine, uponwhich I are bolted two standards 5 and 6.

7 is a rotary conical separating vessel supported ontruimions 8 and9, journaled, r'espectively, in standards 5 and 6. Trunnion 8 receives the driving-pulley 10;` by which the vessel 7A is rotated on its l ngitudinal axis. Withintlie vessel 7 is a lgng conical cage 11, formed by the bars 34, which o n its exterior carries the spiral conveyer-bla'de 12. Extending from the Small end. of cage 1 1 and is rotated at a speed different from that at -which the separating vessel 7 is rotated by meansof the pulley 10. Inthe large end of cage 11 is disposed a supporting-spider 15. The hollow trunnion 9 is extended inwardly,

as shown' at 1 6, and passes through the cenv 'f tral ring 17 4of the spider15. f The inner end vsaid vessel.

ofthe tubula'r extension 16 communicates with a box 18, whch has a deliveryopening- 19.l Supported on standard 6 is a feedchamber 20, open at one end to coincide with the opening in the hollow ltrunnion 9 and tubular extension 16. trunnion7 and tubularext'ension is a spiral conveyer 21'. One end of the shaft of said lconveyer carries a driving-pulley 22. other end is journaled at 23 in the box 18.

ries radial arms 24) Communicating with the chamber 2 0 is a. feed-ho per r25. The liquid-escape o ening 27 is cisposed in the large head 28 oi) the Separating vessel. is a stationary box receiving said large end and having aliquid-outlet at 29. At the Small end of the rotary vessel is an escapeorifice 31 for solids, which delivers into an inclosing box 32, `from which said solids pass by the opening 33.

The o eration of the machine as va whole In said chamber,`

The

1 Within the box .18.the conveyer-shaft cari is as fo lows: The combined materials being placed in the hopper 25 are fed by the rotary conveyer 21 into the box 23 and thenceby centrifugal force and the revolution ofthe arms 24 are ejected throughthe opening 19 and through an interval between the arts of one of the cage-bars 34, as shown in ig. 1, and so into the separating vessel 7,. B the action of centrifugal force said materia s are caused to form a ring near the large end of When said ring attains a cer' tain depth measured radially from the axis of rotation of said vessel, the liquid which is on the inner periphery of said ring escapes through opening 27, and so into the box 2.8, and finally out -at .29. Meanwhilethe conveyer-blades 12 move the solid in the direcvessel 7, and so to the outlet 31 and box 32,

h and finally escape-'opening 33. passing throu h the hollow trunnion 8 and at a point a considerable distance therefrom." The object of this is to prevent the combined IOO niaterials flowing directly from inlet to the liquid-outlet 27. It will he noticed that in .all dangerof their being quick the liquid-outlet` opening is` avoided. An-

i rial against the saine parte ery thereof. f

my present device the liquid-line extends longitudinally of the separating -vessel to a point l) and that the stream of incoming niaterial to that vessel meets its inner periphery at a point between b and the sniall end of said vessel. The combined materials 'therein When acted on hy centrifnGal force to 'nieve to that portion of the vessel farthest radially distant from its axis of rotation are caused to travel in the direction of the arrow c, or, in

other swords, in: afdireetion against that in which theyare positively'nioved-hy vthe rotary conveyer'lZ. :The consequence of this is' thatV -While they liquid with comparative freedompasses the eonveyerthe solids are oonstantlyintercepted by it-and Inovedto- Ward the delivery end, so that the tendency ofv an overplus ofso'lids toaocuinulate at the large end of the vessel is thus revented'and lh-Washed into other point tohe notednis that although the eonveyer .and the/separating vessel. are rotated at. didereirt speeds the tuloe is--iast fwithi'ntthe vessie-1,: and Ihence rotates.'atthe* same-speed,so that the openin 19 deesy not change position circumferential y aroundthe separating vessel, `hut alWa delivers mateythe inner periphl claiinl.' In =a machine toi separatingsolids and liquids a 1 rotaryseparating vessel having ma liquid-outlet, l means -within said Avessel forconveying the solid material intr-av direction longitudinally of said vessel from inlet to out-t let, and means for feeding. the materials to be. separated yinto said .vessel at-a point distanti from one end thereof.

2. In a` machine for separating solids-'andi' .liquidsfhai rotary separatingvesseh liavingaaI materials, an axial liquid-outlet between its circumferential Wall and its axis of rotation, Ineens for conveying solid material in a directionl longitudinally oi said vessel from inlet to outlet and means for materia s, an axially-disposed feed-tu e havingr-a lateral escape-opening entering said vessel and rotating therewith and a rotary spiialfconveyer surrounding said tube and constructed toI move the deposited solid ina f terialto its: escape-outlet.

5. ln-a inaehine for separating solids and liquids-a rotary separating vessel having a liquid-outlet between its oiicinnfeiential Wall and .its axis of rotation, andan escape-outlet for solids, an axially-disposed feed-Luhe having va lateral escape-opening entering; said vessel and rotating therewith, a spiral eenveyer, a Gage supporting said conveyor within said vessel and surrounding; said tuhe and .means for rotating said cage at a rate of speed different from that of said vessel.

In testimony whereof l have signed my naine to this specification in thc presence of twosuhscri hing Witnesses.

JOHN JOSEPH BERRlGAN.

` Witnesses:

WVM. H. SIEGMAN, l. A. VAN WART. 

